Accupro 12180330 Corner Rounding End Mill 1/4 in 2 Flute

Product Description

The ACCUPRO 12180330 is a solid carbide corner rounding end mill designed to produce consistent radius profiles on workpiece edges. With a 0.072-inch radius and a 0.250-inch mill diameter, this double-end tool delivers two usable cutting ends, extending service life between tool changes. The 2-flute, right-hand cutting geometry supports efficient chip evacuation in a range of materials. Bright uncoated finish makes the tool well-suited for non-ferrous metals and general-purpose milling applications where coating is not required. Machinists and tool-and-die professionals typically select this tool for edge-breaking, radius blending, and profiling operations on CNC mills and manual machines.

This corner rounding end mill is intended for use in CNC machining centers, vertical mills, and manual milling setups where precise edge radii are required. The 1/4-inch shank diameter fits standard ER collet chucks and end mill holders commonly found in job shops and production environments. The double-end configuration makes it especially practical for shops looking to reduce per-part tooling cost on moderate-volume runs. It is appropriate for general metalworking, light steel, aluminum, brass, and plastics.

Key Features

• 0.072-inch corner radius for consistent edge profiling
• Solid carbide construction for rigidity and wear resistance
• Double-end design provides two cutting ends per tool
• 2-flute right-hand geometry supports chip clearance in softer materials
• Bright uncoated finish suitable for non-ferrous and general-purpose applications
• 0.106-inch tip diameter for access in tighter profile geometries

Compatibility

Designed as a standard-fitment replacement or new-install corner rounding end mill for 1/4-inch collet and end mill holder setups on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the shank fully within the collet or tool holder to the recommended gauge-line depth before tightening. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before changing tooling. Verify runout with a dial indicator after seating to avoid premature edge wear or chatter.